Functional Testing
What is QA functional testing?
QA functional testing considers the behavior of the software depending on the functional requirements. These may be described in work products such as business requirements specifications, epics, user stories, use cases, or functional specifications, or they may be undocumented.
Since the behavior of the software is the main focus, black-box techniques may be used to derive test conditions and test cases for the functionality of the component or system.
This type of testing should be performed at all test levels (e.g., tests for components may be based on a component specification), though the focus is different at each level.
Functional testing involves checking UI, APIs, Database, security, client/server applications, and functionality of the Application Under Test. In a system, this type of testing involves tests that evaluate functions the system should perform.
The thoroughness of functional testing can be measured through functional coverage. Functional coverage is the extent to which some functionality has been exercised by tests and is expressed as a percentage of the type(s) of the element being covered.
For example, using traceability between tests and functional requirements, the percentage of these requirements which are addressed by testing can be calculated, potentially identifying coverage gaps.
Types of QA functional testing
The main objective of smoke testing is to verify that the important functionalities of the system are working as expected. That means we want to detect early major issues to avoid wasting time and resources in the future.
Integration Testing is a type of functional testing where software modules are integrated logically and tested as a group. It aims to expose defects in the interaction between these software modules when they are integrated.
Integration Testing focuses on checking data communication among these modules. Hence it is also called ‘I&T’ (Integration and Testing), ‘String Testing,’ and sometimes ‘Thread Testing.’
This type of functional testing is done to ensure that new code changes do not have side effects on the existing functionalities. It ensures the old code works once the latest code changes are done.
The process occurs when a software and websites are localized in another language or region. A localization tester performs tests on the product to make it available for new users.
Performing localization testing requires breaking the process into several steps. UI & UX aspects cover the visuals, offering a first impression of the product. Other essential aspects of the product launch are translating and adapting the product to a foreign language and complying with the new market’s local laws and regulations.
